From a3c874200cbcd95ed914ba84f33f571a0ef7adfa Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Mon, 20 Jul 2015 19:54:36 +0300 Subject: mlx5: Fix missing device local_dma_lkey The mlx5 driver exposes device capability IB_DEVICE_LOCAL_DMA_LKEY but does not set the the device local_dma_lkey. This breaks rpcrdma drivers. Query and set this lkey when creating the device resources. Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx5/main.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/infiniband/hw/mlx5') diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 085c24b4b603..5ab5bb3feb97 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1256,10 +1256,18 @@ static int create_dev_resources(struct mlx5_ib_resources *devr) struct ib_srq_init_attr attr; struct mlx5_ib_dev *dev; struct ib_cq_init_attr cq_attr = {.cqe = 1}; + u32 rsvd_lkey; int ret = 0; dev = container_of(devr, struct mlx5_ib_dev, devr); + ret = mlx5_core_query_special_context(dev->mdev, &rsvd_lkey); + if (ret) { + pr_err("Failed to query special context %d\n", ret); + return ret; + } + dev->ib_dev.local_dma_lkey = rsvd_lkey; + devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); if (IS_ERR(devr->p0)) { ret = PTR_ERR(devr->p0); @@ -1421,7 +1429,6 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) strlcpy(dev->ib_dev.name, "mlx5_%d", IB_DEVICE_NAME_MAX); dev->ib_dev.owner = THIS_MODULE; dev->ib_dev.node_type = RDMA_NODE_IB_CA; - dev->ib_dev.local_dma_lkey = 0 /* not supported for now */; dev->num_ports = MLX5_CAP_GEN(mdev, num_ports); dev->ib_dev.phys_port_cnt = dev->num_ports; dev->ib_dev.num_comp_vectors = -- cgit v1.2.3-59-g8ed1b